Dynamic video contact angle measuring instrument

Contact angle analyzer:

Contact angle refers to the tangent line at the intersection of gas, liquid, and solid phases at the gas-liquid interface. This tangent line forms the angle θ between the liquid side and the solid-liquid boundary line. Contact angle measurement is currently the main method for surface performance testing.
Dynamic video contact angle measuring instrumentIt uses the principle of optical imaging to measure the surface contact angle, wetting performance, interfacial tension, surface energy, rolling (sliding angle), forward and backward angle, and hysteresis of the sample through image contour analysis. The equipment adopts a fully automatic liquid inlet device and an automatic overall tilt device, which has comprehensive functions, high cost-effectiveness, and can meet various conventional measurement needs. It has been widely used in many universities, colleges, and enterprises.
Application
Dynamic video contact angle measuring instrumentWidely used in various industries, such as mobile phone manufacturing, glass manufacturing, surface treatment, material research, chemical engineering, semiconductor manufacturing, coatings and inks, electronic circuits, textile fibers, medical biology, etc., contact angle measurement has become an important instrument for evaluating surface performance.
(Some testing functions require the purchase of specialized accessories to complete)
1. The wetting behavior of liquids on solid surfaces, such as spreading, permeation, and absorption, is measured by the droplet method to determine the static contact angle;
2. Measurement of the advance angle, retreat angle, contact angle hysteresis, rolling angle, and dynamic contact angle of materials on solid surfaces;
3. Continuous real-time research and process recording of absorbing materials, analysis of contact angle variation curve over time;
4. Contact angle measurement of various special materials, such as powders, curved surfaces, superhydrophobic/superhydrophilic samples;
5. Contact angle test of materials immersed in liquid using the attachment drop method;
6. The suspended droplet method is used to measure the interfacial tension, polarity, and dispersion components of various liquids;
7. Calculate the surface free energy of solids and analyze its polar dispersion components;
8. Analyze the adhesion energy of liquids on solid surfaces, evaluate the uniformity and cleanliness of solid surfaces, etc.

The contact angle measuring instrument mainly consists of five parts: light source, injection unit, sample stage, acquisition system, and analysis software. The equipment adopts the principle of optical imaging.
The light source adopts a dense LED cold light design, with uniform light emission, image cleaning, and long lifespan;
The injection unit adopts a high-precision injection pump for liquid injection, which is controlled by software for quantitative and speed control. The droplet is stable with an accuracy of up to 0.01 microliters;
The sample stage adopts a three-dimensional manual precision adjustment platform, which is flexible in operation and accurate in positioning. The sample stage can be customized according to the actual sample size;
The acquisition system adopts a black and white imported CCD camera, with stable shooting, clear images, and reliable authenticity. The lens adopts German industrial grade imported configuration, with adjustable magnification of 0.7-4.5 times, and no distortion or distortion in imaging;
Analysis software features *, with one click fully automatic fitting ability, equipped with fitting methods to meet the precise fitting of various droplet shapes;

Technical Specifications